Half to saxton



(No lAodel.) I v I E. T. JOHNSON.

HEATING AND VENTILATING APPARATUS. 1

A No. 3'76,745.- Patent edJa.n.' 24, 1888.

w/r /vsssag: f

- ATTORNEY Nv Finns mwumwm. Wm n. e

A IAA EIVT O'R W (a;

v UNITEDSTATES PATENT OFFICE. v

EDWIN T. JOHNsON, OF MINNEAPOLIS, MINNESOTA,

HALF TO SAXTON & PHILLIPS, OF SAME'PLAOE.

HEATING AND VENTILATING APPARATUS.

SPECIFICATION forming part of Letters-Ferment No. 376,745, dated January 24-, 1888.

I I Application filed March 15, 1887. Serial N0.239,9 15. (No model.)

To all whom/it may concern.-

'Be it known thatl, EDWIN T. J HNsON, a

' citizen of the United'States, residing at Minneapolis, county of Hennepin, and State of Minnesota, have invented certain new and useful Improvements in Heating and Ventilating Apparatus, of which the following is a specification, reference being had to the accompanying drawings. p

The object of my invention is to supply air of any desired temperature to the living-rooms of buildings; and it consists in the construcable to take. the air at several different temperatures from the same furnace, thus keeping up the ventilation and lowering and raising the temperature in the, living-room at will.

. In the drawings, like letters referring to like parts throughout, Figure 1 is a perspective view of, the interior of a building with my invention in working position. Fig. 2 is a vertical section of a part of the air-conduits and theregister, showing the mechanism for operating the dampers; and Fig. 3 is a side elevation or front view of the register-space and the mechanism placed therein with the register removed.

' Ais a living-room, and B is a furnace-chamber within the interior of a building.

1) is a furnace within the chamber B.

E is an air-conduit leading from the bottom of the furnace to the register F, which is located at any convenient point, preferably in the sidewall nearthe floor, in the living-room. The air-conduit E is divided into two fiues or The section or flue E connects with top of the same. The section or flue E con- AssIeNOR OF QNE I nects with the heating-chamber ofthe furnace near the bottom of the same, and also with the intake-flue H, which supplies fresh air'from the exterior of the building to the heatingchamber of the furnace.

The fluesE' and E both terminate at their upper extremities in the common registerspaeo K. At'the bottom of the flue E,within the space which connects it both with the intake H and the .heating-chamber-of the flirnace, is placed a damper, L. lVhen'this damper is down or in its horizontal position,

the flue E is connected to the bottom of the heating-chamber of the furnace and cutoff from the intake H. When itis in its raised position, the flue E is connected with the in} take and out off from the furnace. 3

To the free end of the damper L is pivotally attached an operating-rod, M, which is exof the register F, where it is attached by a crank-arm, Z, to a rook-shaft, L. shaft L rests in bearings in the front and-rear walls of the air-conduit F aud its forward end From the free end of the damperP extends an operating-rod, R, which ispivotally at-v 7o: tended up the flue to thelevel of the bottom V This rocktached to a crank-arm, p,-on a transverserocksh aft, P.

This shaft Prests in bearingsin the rear and front walls'of the register-space K, near the top of the same, and its forward end extends through the front wall, preferably directly over the register,and1is provided with a crank-lever handle, 1?. From the free end of the damper N extends a similar rod, S, to a similar crank-arm, n, on a similar rock-shaft, N, which extends in like'manner through the front wall of the register-space, and is pro;

vided with a similar operating-lever, N.

Any suitable means may be'providedfor drawing off thefoul air fromthevarious rooms; Y

but I prefer to employ for the purpose the construction shown in my application for patent of date March 15, 1887, under application No.

The operation is as follows: Supposing the fire to be up in the furnaee,if the damperN be closed and the damper I? be raised, air from the top of the heating'chamber, the hottest air in the furnace, will pass up the fiue'E and be admitted through the register into the livingroom. If this should be too hot, but only slightly so, the dampers P, and L may be closed into their horizontal positions, and then warm air will be taken from the bottom of the heating-chamber, which will be of a considerably lower temperature, through flue E, and discharged into the living'room. If this be still too hot,the damper L may be raised, shutting off the heating chamber entirely and the fresh cool or cold air be taken directly from the in take H through flue E into the room A. The

occupant can thus always temper the air of his room to suit himself, and at the same time maintain perfect ventilation.

A material feature of my invention is the partitionplate G in the air-conduit E. This partition I make of galvanized iron or other heat-radiating material; hence, when the flue E is connected with the intake H and the damper P is closed, the partition-plate G will heat the air sufficiently (though slightly) to cause it to pass upward into the living-room.

What I claim, and desire to secure by Letters Patent of the United States, is as follows:

1. In combination, for heating and ventilating buildings, a furnace, independent warmair flues connected one to the top and the other to the bottom of the heatingchamber of the furnace and leading to the room to be heated, and means for forcing the air from the furnace solely through one'or the other at will, substantially as and for purpose set forth.

2. In combination, for tempering the air of living-rooms, a heating'furnace, a registerspace provided with a register opening into the living-room, an air-conduit from said register-space to thetop of said furnace, an independent air-conduit from said register-space to the bottom of said furnace and to the fresh air-intake pipe, and provided with a damper for connecting it to the bottom of the furnace or to the intake-pipe at will, and dampers suitably placed in said conduits for disconnecting either of them from said registerspace, substantially as described, whereby hot air, warm air, or cold air may be supplied to 5 said living-room, as desired.

3. In combination, for heating and tempering the air of living-rooms, a heating-furnace, a fresh-air-intak-e pipe to said furnace, two parallel and adjacent air-conduits from said living-room, one communicating with said furnace and constituting a hot-air conduit and the other communicating with saidintake-pipe and constituting a cold-air conduit, said hot and cold air conduits having for the whole or a part of their length a common partition composed of iron or similar heat-radiating material, substantially as described, whereby a forced draft is produced in the cold-air conduit by the heat radiated into the same from the adjacent hot air conduit.

4. In combination, for heating and tempering the air of living-rooms, a fresh-air-intake pipe, a heating-furnace, air-conduits from said living-room to said furnace and intake-pipe, respectively, having a common divisionplate composed of iron or similar heat-radiating material, and a damper placed in the hot-air conduit above saidmetallic division or radiating plate, whereby the hot-air conduit may be used to produce a draft in the cold-air conduit without conducting its hot air to the livingroom, as set forth.

5. In combination, heating'furnace D, freshair-intake pipe H, register-space K, provided with a register opening into the living-room, the air-flue E, communicating with said register-space at one end and with said intakepipe and the lower part of said furnace at the other end, the damper L, provided with 0per ating-lever mechanism M l L L, for connecting the lower part of said air-flue with the intake-pipe and shutting it off from the furnace, or reversely, as described, and the damper N, provided with the operatinglever mechanism N n S N, as described, for connecting or dis-- connecting said air-flue with said registerspace, substantially as and for the purpose set forth.

EDWIN T. JOHNSON.

In presence of- B. PHILLIPS, J r., EMMA ELMORE. 

